The term 'cold vegetable dish' can be summarized as a SALAD, which is a five-letter word. Salads are typically composed of raw vegetables, such as lettuce, tomatoes, cucumbers, and onions, and often include other ingredients like cheese, nuts, and croutons. They are usually served cold and dressed with a vinaigrette or other type of dressing. Salads are a popular side dish or appetizer, but can also be served as a main course.